SR Unorthodox crank pulley??

[9240sx]

What do you guys think about the Unorthodox Crank Pulley for the S13 SR20DET??I had one on my KA and i liked it alot.But do you think its worth the $$ on the sr??And are the timing marks right on it.

[pgt892]

Well, it is an underdrive pulley so you will see some gain off of that, personally, I would prefer a stock-sized pulley, just lighter.

Edit: Plus you can get three pulleys with the Greddy kit for only ~$40 more.

[Nismo_Freak]

The SR needs a smaller pulley to underdrive the water pump so it doesn't cavitate.

I plan to run one on my car.

[9240sx]

Do you know how much horsepower UR claims to make with this pulley?

[Nismo_Freak]

Do you know how much horsepower UR claims to make with this pulley?

Dyno of crank pulley on Mike Kojima's 200SX SE-R

[BaliLover]

Is this an underdrive pulley or just a lightweight pulley? If its underdrive, how does it work if you run it with underdrive pulleys from Greddy? What do you do about belts?

[Nismo_Freak]

Is this an underdrive pulley or just a lightweight pulley? If its underdrive, how does it work if you run it with underdrive pulleys from Greddy? What do you do about belts?

Underdrive

You will more than likely underdrive your water pump too much. The Greddy pullies don't underdrive the alternator or the PS thankfully so you won't see too much of a driveability drop.

From a logical standpoint you will gain much more by going with the OEM accessory pullies and sticking to the UR pulley. You will lose the good look of the Greddy pullies.

[Colton]

I have the UR crank pulley and it didn't make any difference in my "butt" dyno, but on the flip side I cant really tell you how much HP any of my mods gained me. The pulley does seem to compliment my set up and it was ridiculously light and small compared to the stock unit (I'd say your knocking at least 3 to 4 pounds off of your reciprocating mass which = HP

[9240sx]

How do the timing marks look on it?And what size belts did you have to use.

[Colton]

There is timing marks on it (exact same as factory). The belt size is with the instructions, it's a common carquest/napa/autozone belt. I can get you the # tomorrow if you can wait (I'm at work).

[9240sx]

Colton can you get me the belt sizes still? I just order the UR pulley from Marty T,But it would be nice to have the belts ready when the pulley shows up.I just need the PS/and the WP,Alt.

Thanks alot,

[Colton]

I'm at work right now, but I'll post you the belt part #'s tomorrow.

-Colton